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NFPA Ratings

• 0 - No Hazard

• 1 - Slight Hazard

  Irritation or minor injury possible

• 2 - Dangerous

  Exposure is hazardous to health

• 3 - Extreme Danger

  Serious injury likely from exposure

• 4 - Deadly

  Even slightest exposure can be life-threatening

• 0 - Will not burn

• 1 - Flash point above 200° F

  Substance must be preheated

• 2 - Flash point below 200° F

  Moderately heated conditions may ignite substance

• 3 - Flash point below 100° F

  Flammable, volatile, or explosive; use extreme caution

• 4 - Flash point below 73° F

  Very flammable, volatile, or explosive; use extreme caution

• 0 - Stable

• 1 - Normally stable

  May become unstable with elevated heat, pressure, or water

• 2 - Unstable

  Violent chemical changes possible at normal conditions; potentially explosive with water

• 3 - Explosive

  Readily capable of detonation by strong initiating source, such as water, heat, or shock

• 4 - May detonate

  Readily capably of detonation at normal temperature and pressure

• W

  Reacts violently with water

• OX

  Strong oxidizing chemical

• ACID

  Material is an acid

• ALK

  Alkaline material, also called a base

• COR

  Material that is corrosive (it could be either an acid or a base)

• <em>Please note: Other symbols may be used</em>

HMIS Ratings

• 0 - Minimal Hazard

  No significant risk to health

• 1 - Slight Hazard

  Irritation or minor injury possible

• 2 - Moderate Hazard

  Temporary or minor injury may occur

• 3 - Serious Hazard

  Major injury likely unless prompt action is taken and medical treatment given

• 4 - Severe Hazard

  Life threatening.Major permanent damage may result from single or repeated exposures

• *

  If present, the asterisk signifies a chronic health hazard.Long-term exposure to the material could cause a health problem.

• 0 - Minimal Hazard

  Materials that are normally stable and will not burn unless heated

• 1 - Slight Hazard

  Materials that must be preheated for ignition to occur; flash points at or above 200° F

• 2 - Moderate Hazard

  Materials which must be moderately heated for ignition to occur; flash points at or above 100° F and below 200° F

• 3 - Serious Hazard

  Materials capable of ignition under almost all normal temperatures and/or conditions; flammable liquids with flash points below 73° F and boiling points above 100° F, as well as liquids with flash points between 73° F - 100° F

• 4 - Severe Hazard

  Very flammable gases or very volatile flammable liquids with flash points below 73° F and boiling points below 100° F

• 0 - Minimal Hazard

  Materials that are normally stable under fire conditions and will not react to water, polymerize, decompose, condense, or self react

• 1 - Slight Hazard

  Materials that are normally stable but can become unstable at high temperature and pressures; materials may react non-violently with water or undergo hazardous polymerization in the absence of inhibitors

• 2 - Moderate Hazard

  Materials that are unstable and may undergo violent chemical change at normal temperature and pressure with low risk for explosion; materials may react violently with water or form peroxides upon exposure to air

• 3 - Serious Hazard

  Materials that may form explosive mixtures with water, are capable of detonation or explosive reaction in the presence of a strong initiating source, or undergo chemical change at normal temperature and pressure with moderate risk of explosion

• 4 - Severe Hazard

  Materials that are readily capably of water reaction, detonation or explosive decomposition at normal temperatures and pressures

• A

  Safety Glasses

• B

  Safety Glasses, Gloves

• C

  Safety Glasses, Gloves, Protective Apron

• D

  Face Shield, Gloves, Protective Apron

• E

  Safety Glasses, Gloves, Dust Respirator

• F

  Safety Glasses, Gloves, Protective Apron, Dust Respirator

• G

  Safety Glasses, Gloves, Vapor Respirator

• HH

  Splash Goggles, Gloves, Protective Apron, Vapor Respirator

• I

  Safety Glasses, Gloves, Dust Respirator, Vapor Respirator

• J

  Splash Goggles, Gloves, Protective Apron, Dust Respirator, Vapor Respirator

• K

  Air Line Mask or Hood, Gloves, Full Suit, Boots

• L - Z

  Site specific label. Ask your supervisor or safety specialist for handling instructions.